Home / 25,818.02-35,624.54-15,209.78

Finding the Fourth Proportional to 25,818.02, 35,624.54 and 15,209.78

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Solution

The fourth proportional to 25,818.02, 35,624.54 and 15,209.78 is: 20,986.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,818.02 : 35,624.54 = 15,209.78 : x
  2. Step 2: Convert to fraction form
    25,818.02/35,624.54 = 15,209.78/x
  3. Step 3: Cross multiply
    25,818.02x = 35,624.54 × 15,209.78
  4. Step 4: Simplify right side
    25,818.02x = 541,841,416.00
  5. Step 5: Solve for x
    x = 541,841,416.00/25,818.02
  6. Step 6: Final answer
    x = 20,986.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.